Is the word "hallelujah" constructed
by four words or one word? Because it is constructed by four
words in Chinese, and I hear my teacher said "halle"
means praise, "lu" means "your," "Jah"
means "G-d," and the word "Hallelujah" sounds
a bit commanding. It that true? Does the word comes from Hebrew
or Greek? I look forward to your reply.

Dear Lee Kong Giap,

The word hallelujah mentioned in Psalms is
the Hebrew word for requesting a congregation to join in praise.
"Hallel" means to recite praise, "hallelu"
is the plural form. The grammatical extension "yah"
is a way of expressing magnanimity. For example "merchav"
means space, "merchavyah" means a vast space
(Psalms 118:5); "shalhevet" means flame,
"shalhevetyah" means a colossal flame (Song
of Songs 8:10). Hence, halleluyah means "a great
praise."

There are other ways of interpreting this word,
as the Hebrew language does include the possibility for many meanings
in the same word; thus it can also be understood to mean "praise
G-d."